Engwe BC281 E-bike Display Manual

Product Description and Specifications

Image of the Engwe BC281 e-bike display unit mounted on handlebars, showing a digital screen with speed (20.6 KM/H), assist level (3), trip distance (2048.9 KM), and battery indicator (100%).

Parts Description

DTK5 Remote

Image of the DTK5 remote control unit.

BC281 Display

Image of the BC281 display unit.

Display Dimensions

Diagram showing the dimensions of the BC281 display unit: 59.00 mm width, 86.00 mm height, 13.80 mm depth.

Function Introduction

Diagram showing the dimensions of the DTK5 remote unit.

Features

• Real-time speed, Max speed, Average speed
• Real-time motor power
• Battery indicator
• Assistant level
• Odometer, trip
• Trip time
• Calorie burnt
• Light indicator
• Metric (km/h) / Imperial (mph) switching
• Error codes indicator
• Auto headlights, Brightness adjustment, automatic backlight
• Auto Power-off
• USB Port (5V/500mA)
• Bluetooth version features: APP connection, Data synchronization, Riding ranking, Riding track recording.

Buttons Functions

Operation

Power on/off

To power on, long press the [⏻] button for approximately 1.5 seconds. The boot interface will be displayed, followed by the riding interface.

Screenshot of the BC281 display's boot interface, showing '100%' battery, '0.0 SPEED KM/H', '0 ASSIST', and '0.0 KM TRIP DIST.'

To power off, long press the [⏻] button for approximately 2 seconds in any interface. The shutdown interface will be displayed before the unit powers off.

Screenshot of the BC281 display's shutdown interface, similar to the boot interface.

Riding Interface

The BC281 provides various styles of riding interfaces, which can be switched by clicking the [i] button.

1. Simple Mode

Displays key information such as battery indicator, light indicator, speed, assist level, and trip distance.

Screenshot of the BC281 display's 'Simple mode' riding interface, showing battery indicator, light indicator, speed, assist level, and trip distance.

Riding Interface Modes

2. Sports Mode

Includes battery indicator, speed, assist level, trip distance, real-time speed, speed unit, real-time motor power, riding time, and calorie burnt.

Screenshot of the BC281 display's 'Sports Mode' riding interface, showing battery indicator, speed, assist level, trip distance, real-time motor power, riding time, and calorie burnt.

3. Statistical Mode

Presents overall statistics including trip distance, trip time, average speed, max speed, calories burnt, odometer, assist level, battery indicator, real-time speed, and speed unit.

Screenshot of the BC281 display's 'Statistical Mode' riding interface, showing overall statistics like trip distance, trip time, average speed, max speed, calories burnt, odometer, assist level, battery indicator, real-time speed, and speed unit.

Assist Level Switch

Click the [+] or [-] buttons to switch assist levels. Press and hold the [-] button to enter push mode; release to exit.

Error Code

Common error codes are listed below for reference. These may vary depending on other electrical components of the e-bike.

Screenshot of the BC281 display showing a 'FAULT' message with code '30'.

KM5S Protocol Error Codes

Li2 Protocol Error Codes

User Menu

To enter the user menu, long press the [i] button for 2 seconds on the riding interface when the e-bike is static (speed is 0).

In this interface, you can switch submenus by clicking the [+] or [-] buttons, and enter a submenu by clicking the [i] button.

Screenshot of the BC281 display's main menu: 'Menu', 'Back <', 'Clear Data', 'Setup', 'System info.', 'Connect to APP'.

1. Clear Data

Select "Trip Distance" and click the [i] button to enter. You can then clear the trip distance based on the interface prompts.

Screenshot of the BC281 display's 'Clear Data' submenu: 'Clear Data', 'Trip Distance', 'Factory Reset', 'Back <'.

Note: This operation will also clear Trip Time, Max & Avg Speed, and Calories Burnt.

Screenshot of the BC281 display's 'Clear Trip Dist.?' prompt: 'Yes', 'No', with a note that this also clears Trip Time, Max & Avg Speed, and Calories Burnt.

2. Factory Reset

Select "Factory Reset" and click the [i] button to enter. This will reset all parameters.

Screenshot of the BC281 display's 'Factory Reset?' prompt: 'Yes', 'No', with a warning about data and settings reverting to default.

3. Setup

Access the setup menu to configure various functions.

Screenshot of the BC281 display's 'Setup' menu: 'Setup', 'Auto Headlight', 'Set Unit', 'Set Brightness', 'Auto Power-Off', 'Back <'.

(1) Auto Headlight

Select "Auto Headlight" and click the [i] button to enter the submenu. You can enable or disable the automatic headlight function.

Screenshot of the BC281 display's 'Auto Headlight' setting: 'Auto Headlight', 'Yes', 'No'.

(2) Set Unit

Select "Set Unit" and click the [i] button to enter the submenu. You can choose between Metric (Km) and Imperial (Mile) units.

Screenshot of the BC281 display's 'Set Unit' menu: 'Set Unit', 'Metric - Km', 'Imperial - Mile'.

(3) Set Brightness

Select "Set Brightness" and click the [i] button to enter the submenu. Use the [+] or [-] buttons to adjust the backlight brightness level in the range of 0-5.

Screenshot of the BC281 display's 'Set Brightness' interface: 'Set Brightness', '+' button, '5', 'i: SET' button, '-' button, indicating brightness level 0-5.

(4) Set Auto Power-Off

Select "Auto Power-Off" and click the [i] button to enter the submenu. Use the [+] or [-] buttons to adjust the automatically power off time in the range of 0-99. A setting of 0 means the unit will not automatically power off.

Screenshot of the BC281 display's 'Auto Power-Off' setting: 'Auto Power-Off', '+' button, '10 min', 'i: SET' button, '-' button, indicating adjustable power-off time.

System Info.

Enter "System Info" to view system details.

Screenshot of the BC281 display's 'System Info.' screen: 'System Info', 'Wheel Size: 29 inch', 'Speed Limit: 15 MPH', 'HMI Version: 4.1.7', 'Back <'.